Patent
   D620132
Priority
Dec 28 2009
Filed
Dec 28 2009
Issued
Jul 20 2010
Expiry
Jul 20 2024
Assg.orig
Entity
unknown
5
6
n/a
The ornamental design of a ladder, as shown and described.

FIG. 1 is a front left side perspective view of the ladder in an embodiment of the present invention;

FIG. 2 is a right side view of the ladder of the present invention;

FIG. 3 is a bottom view of the ladder of the present invention;

FIG. 4 is a top view of the ladder of the present invention;

FIG. 5 is a back view of the ladder of the present invention;

FIG. 6 is a front perspective view of the ladder of the present invention;

FIG. 7 is a partially collapsed right side elevation view of the ladder of the present invention;

FIG. 8 is a partially collapsed back side perspective view of the ladder of the present invention;

FIG. 9 is a collapsed left side perspective view of the ladder of the present invention; and,

FIG. 10 is a back collapsed view of the ladder of the present invention.

Han, Chunwen

Patent Priority Assignee Title
11149493, Apr 30 2018 DOREL HOME FURNISHINGS, INC Foldable stepladder
D797955, Dec 15 2015 Step ladder with safety attachment
D912277, Aug 06 2020 Ladder
ER4284,
ER662,
Patent Priority Assignee Title
6000497, Jan 09 1997 COSCO MANAGEMENT, INC Detachable tray for step stool
6450290, Jun 05 2000 Folding ladder
7182176, May 28 2004 DOREL HOME FURNISHINGS, INC Step stool with elevated tray
20020017430,
D447817, Aug 11 2000 DOREL HOME FURNISHINGS, INC Step stool
D465289, Aug 11 2000 DOREL HOME FURNISHINGS, INC Step stool
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Dec 28 2009Guangzhou Hansheng Trade Development Co., Ltd.(assignment on the face of the patent)
Dec 28 2009HAN, CHUNWENGUANGZHOU HANSHENG TRADE DEVELOPMENT CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0239560878 pdf
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